/* Hallmark · macrostructure: Commerce Split / Chapter Stream · tone: mature night-market · anchor hue: amber · contrast: pass (40–41) · nav: N2 dark catalogue · footer: Ft2 guide index · slop: pass (42–49) · mobile: pass (34, 49–57) */
/* Hallmark · pre-emit critique: P5 H5 E4 S5 R4 V5 */
@import url("tokens.css");

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; overflow-x: clip; }
html { scroll-behavior: smooth; scroll-padding-top: 6rem; background: var(--color-paper); }
body { min-width: 320px; color: var(--color-ink); background: var(--color-paper); font-family: var(--font-body); line-height: 1.72; -webkit-font-smoothing: antialiased; }
body.menu-open, body.modal-open { overflow-y: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration-thickness: .08em; text-underline-offset: .18em; }
button, input, select { font: inherit; }
h1, h2, h3, p, ul, ol, dl, figure { margin-top: 0; }
h1, h2, h3 { font-family: var(--font-display); font-style: normal; line-height: 1.16; overflow-wrap: anywhere; min-width: 0; }
h1 { font-size: var(--text-display); letter-spacing: -.055em; margin-bottom: var(--space-md); }
h2 { font-size: var(--text-2xl); letter-spacing: -.03em; margin-bottom: var(--space-lg); }
h3 { font-size: var(--text-xl); margin-bottom: var(--space-sm); }
p { margin-bottom: var(--space-md); }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; box-shadow: 0 0 0 5px var(--color-paper); }
::selection { background: var(--color-accent); color: var(--color-ink); }
.skip-link { position: fixed; z-index: 200; inset: var(--space-sm) auto auto var(--space-sm); transform: translateY(-180%); background: var(--color-white); padding: var(--space-sm) var(--space-md); border: var(--rule-bold) solid var(--color-ink); }
.skip-link:focus { transform: translateY(0); }
.wrap { width: min(1180px, calc(100% - 2rem)); margin-inline: auto; }
.narrow { width: min(780px, 100%); }
.section { padding-block: var(--space-4xl); }
.section--tint { background: var(--color-paper-2); border-block: var(--rule-thin) solid var(--color-line); }
.section--dark { color: var(--color-paper); background: var(--color-nav); }
.section-head { display: grid; grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr); gap: var(--space-xl); align-items: end; margin-bottom: var(--space-2xl); border-bottom: var(--rule-bold) solid currentColor; padding-bottom: var(--space-md); }
.section-head h2, .section-head p { margin-bottom: 0; }
.section-head p { max-width: 58ch; justify-self: end; color: var(--color-muted); }
.section--dark .section-head p { color: var(--color-paper-2); }
.kicker { display: block; font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .12em; text-transform: uppercase; margin-bottom: var(--space-xs); }
.muted { color: var(--color-muted); }
.prose { max-width: 72ch; }
.prose p { font-size: var(--text-lg); }
.promo { background: var(--color-berry); color: var(--color-white); font-weight: 700; font-size: var(--text-sm); text-align: center; padding: var(--space-xs) var(--space-2xl); position: relative; }
.promo a { white-space: nowrap; }
.promo-close { position: absolute; right: var(--space-sm); top: 50%; transform: translateY(-50%); color: inherit; background: transparent; border: 0; width: 2rem; height: 2rem; cursor: pointer; }
.promo-close:hover { background: color-mix(in oklch, var(--color-white) 15%, transparent); }
.promo-close:active { transform: translateY(-48%) scale(.96); }
.site-header { position: sticky; top: 0; z-index: 90; background: var(--color-nav); color: var(--color-white); border-bottom: var(--rule-thin) solid color-mix(in oklch, var(--color-white) 16%, transparent); }
.nav-shell { min-height: 4.45rem; display: flex; align-items: center; gap: var(--space-lg); }
.brand { display: inline-flex; align-items: center; gap: var(--space-xs); text-decoration: none; white-space: nowrap; font-weight: 800; }
.brand-mark { display: grid; place-items: center; width: 2rem; height: 2rem; border: var(--rule-thin) solid var(--color-accent); border-radius: 50%; color: var(--color-accent); font-family: var(--font-display); }
.nav-links { display: flex; align-items: center; gap: var(--space-lg); margin-left: auto; }
.nav-links a { text-decoration: none; white-space: nowrap; font-weight: 650; font-size: var(--text-sm); }
.nav-links a:hover { color: var(--color-accent); }
.nav-links a[aria-current="page"] { color: var(--color-accent); border-bottom: 2px solid currentColor; }
.menu-toggle { display: none; margin-left: auto; width: 2.75rem; height: 2.75rem; background: transparent; color: inherit; border: var(--rule-thin) solid color-mix(in oklch, var(--color-white) 35%, transparent); cursor: pointer; }
.menu-toggle::before { content: ""; display: block; width: 1.25rem; height: .75rem; margin: auto; border-block: 2px solid currentColor; }
.btn { min-height: 3rem; display: inline-flex; justify-content: center; align-items: center; gap: var(--space-xs); padding: var(--space-sm) var(--space-md); border: var(--rule-bold) solid transparent; border-radius: var(--radius-sm); font-weight: 850; text-decoration: none; white-space: nowrap; cursor: pointer; transition: transform var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out); }
.btn--primary { background: var(--color-accent); color: var(--color-accent-ink); border-color: var(--color-accent); box-shadow: 4px 4px 0 var(--color-earth); }
.btn--primary:hover, .btn--primary.is-hover { background: var(--color-accent-strong); }
.btn--primary:active, .btn--primary.is-active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--color-earth); }
.btn--secondary { color: inherit; background: transparent; border-color: currentColor; }
.btn--secondary:hover, .btn--secondary.is-hover { color: var(--color-forest); background: var(--color-white); }
.section--dark .btn--secondary:hover { color: var(--color-ink); }
.btn[aria-disabled="true"], .btn:disabled { opacity: .48; pointer-events: none; box-shadow: none; cursor: not-allowed; }
.btn[data-state="loading"] { cursor: wait; opacity: .75; }
.btn[data-state="error"] { background: var(--color-error); color: var(--color-white); }
.btn[data-state="success"] { background: var(--color-success); color: var(--color-white); }
.nav-cta { min-height: 2.5rem; padding: var(--space-xs) var(--space-md); }
.hero { position: relative; background: var(--color-nav); color: var(--color-paper); padding: var(--space-2xl) 0 var(--space-3xl); overflow: clip; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(320px, .78fr); gap: var(--space-xl); align-items: stretch; }
.hero-media { position: relative; min-height: 520px; overflow: hidden; background: var(--color-ink); border: var(--rule-thin) solid color-mix(in oklch, var(--color-white) 18%, transparent); }
.hero-media img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.03); animation: hero-breathe 18s var(--ease-in-out) infinite alternate; }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 55%, color-mix(in oklch, var(--color-nav) 42%, transparent)); pointer-events: none; }
@keyframes hero-breathe { to { transform: scale(1.05); } }
.hero-caption { position: absolute; inset: auto var(--space-md) var(--space-md) var(--space-md); z-index: 2; max-width: 36rem; padding: var(--space-sm) var(--space-md); background: color-mix(in oklch, var(--color-nav) 82%, transparent); border-left: var(--rule-bold) solid var(--color-accent); font-size: var(--text-sm); }
.hero-card { display: flex; flex-direction: column; justify-content: center; background: var(--color-paper); color: var(--color-ink); padding: var(--space-2xl); border-top: var(--space-xs) solid var(--color-accent); }
.hero-card h1 .jp { display: block; margin-top: var(--space-sm); font-family: var(--font-body); font-size: clamp(1rem, 2vw, 1.4rem); font-weight: 650; letter-spacing: .04em; color: var(--color-muted); }
.hero-lede { font-size: var(--text-lg); max-width: 38ch; }
.chips { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-bottom: var(--space-lg); }
.chip { display: inline-flex; align-items: center; min-height: 2rem; padding: .25rem .65rem; border: var(--rule-thin) solid var(--color-line); background: var(--color-white); font-size: var(--text-sm); font-weight: 700; white-space: nowrap; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin: var(--space-lg) 0; }
.hero-meta { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-block: var(--rule-thin) solid var(--color-line); }
.hero-meta div { padding: var(--space-sm) 0; min-width: 0; }
.hero-meta div:nth-child(even) { padding-left: var(--space-md); border-left: var(--rule-thin) solid var(--color-line); }
.hero-meta dt { font-size: var(--text-xs); color: var(--color-muted); }
.hero-meta dd { margin: 0; font-weight: 850; overflow-wrap: anywhere; }
.age-note { display: flex; gap: var(--space-sm); align-items: flex-start; margin-top: var(--space-lg); padding: var(--space-sm); color: var(--color-ink); background: color-mix(in oklch, var(--color-berry) 9%, var(--color-paper)); border-left: var(--rule-bold) solid var(--color-berry); font-size: var(--text-sm); }
.age-badge { flex: 0 0 auto; border: 2px solid var(--color-berry); color: var(--color-berry); font-weight: 900; padding: 0 var(--space-xs); }
.store-strip { background: var(--color-paper-2); border-bottom: var(--rule-thin) solid var(--color-line); }
.info-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); }
.info-grid div { padding: var(--space-lg) var(--space-md); border-right: var(--rule-thin) solid var(--color-line); min-width: 0; }
.info-grid div:last-child { border-right: 0; }
.info-grid dt { font-size: var(--text-xs); color: var(--color-muted); margin-bottom: var(--space-xs); }
.info-grid dd { margin: 0; font-weight: 800; overflow-wrap: anywhere; }
.story-layout { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); gap: var(--space-3xl); align-items: start; }
.story-sticky { position: sticky; top: 7rem; }
.story-sticky blockquote { margin: 0; padding: var(--space-lg); border-left: var(--rule-bold) solid var(--color-berry); background: var(--color-paper-2); font-family: var(--font-display); font-size: var(--text-xl); }
.feature-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border: var(--rule-thin) solid var(--color-line); }
.feature { padding: var(--space-xl); border-right: var(--rule-thin) solid var(--color-line); border-bottom: var(--rule-thin) solid var(--color-line); transition: transform var(--dur-base) var(--ease-out), background-color var(--dur-base) var(--ease-out); }
.feature:nth-child(even) { border-right: 0; }
.feature:nth-last-child(-n+2) { border-bottom: 0; }
.feature:hover { transform: translateY(-3px); }
.feature-index { display: inline-grid; place-items: center; width: 2.2rem; height: 2.2rem; margin-bottom: var(--space-md); color: var(--color-white); background: var(--color-forest); border-radius: 50%; font-family: var(--font-mono); font-size: var(--text-xs); }
.gallery-split { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(260px, .7fr); gap: var(--space-md); }
.gallery-main, .gallery-thumb { position: relative; display: block; overflow: hidden; background: var(--color-nav); border: var(--rule-thin) solid var(--color-line); }
.gallery-main { min-height: 470px; }
.gallery-main img, .gallery-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease-out); }
.gallery-main:hover img, .gallery-thumb:hover img { transform: scale(1.025); }
.thumb-stack { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-md); }
.gallery-thumb { min-height: 220px; }
.gallery-main span, .gallery-thumb span { position: absolute; inset: auto var(--space-sm) var(--space-sm); color: var(--color-white); background: color-mix(in oklch, var(--color-nav) 86%, transparent); padding: var(--space-2xs) var(--space-xs); font-size: var(--text-xs); text-decoration: none; }
.catalogue-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-lg); }
.catalogue-card { background: var(--color-white); border: var(--rule-thin) solid var(--color-line); }
.catalogue-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.catalogue-card figcaption { padding: var(--space-md); }
.card-label { color: var(--color-forest); font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 800; }
.download-panel { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(300px, .7fr); gap: var(--space-xl); align-items: stretch; }
.download-copy { padding: var(--space-2xl); background: var(--color-paper); color: var(--color-ink); border-top: var(--space-xs) solid var(--color-accent); }
.download-box { display: flex; flex-direction: column; justify-content: space-between; gap: var(--space-lg); padding: var(--space-2xl); border: var(--rule-thin) solid color-mix(in oklch, var(--color-white) 30%, transparent); }
.download-box dl { margin: 0; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--space-sm) var(--space-md); }
.download-box dd { margin: 0; font-weight: 750; }
.steps { counter-reset: steps; display: grid; gap: var(--space-lg); }
.step { position: relative; padding: var(--space-xl) var(--space-xl) var(--space-xl) 5rem; border: var(--rule-thin) solid var(--color-line); background: var(--color-white); }
.step::before { counter-increment: steps; content: counter(steps); position: absolute; left: var(--space-lg); top: var(--space-lg); width: 2.4rem; height: 2.4rem; display: grid; place-items: center; background: var(--color-forest); color: var(--color-white); font-family: var(--font-mono); border-radius: 50%; }
.spec-table { width: 100%; border-collapse: collapse; background: var(--color-white); }
.spec-table th, .spec-table td { text-align: left; padding: var(--space-md); border: var(--rule-thin) solid var(--color-line); vertical-align: top; }
.spec-table th { width: 28%; background: var(--color-paper-2); }
.audience-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-lg); }
.audience-card { padding: var(--space-xl); border-top: var(--rule-bold) solid var(--color-forest); background: var(--color-white); box-shadow: 0 .7rem 2rem color-mix(in oklch, var(--color-ink) 8%, transparent); }
.audience-card.caution { border-top-color: var(--color-berry); }
.faq { display: grid; gap: var(--space-sm); }
.faq details { background: var(--color-white); border: var(--rule-thin) solid var(--color-line); }
.faq summary { padding: var(--space-md) var(--space-lg); font-weight: 820; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; margin-left: var(--space-md); color: var(--color-forest); }
.faq details[open] summary::after { content: "−"; }
.faq details[open] summary { border-bottom: var(--rule-thin) solid var(--color-line); }
.faq-answer { padding: var(--space-lg); }
.faq-answer > :last-child { margin-bottom: 0; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: var(--space-xs); font-size: var(--text-sm); margin-bottom: var(--space-lg); }
.breadcrumbs a { white-space: nowrap; }
.page-hero { padding-block: var(--space-3xl); background: var(--color-paper-2); border-bottom: var(--rule-thin) solid var(--color-line); }
.page-hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr); gap: var(--space-2xl); align-items: end; }
.page-hero h1 { font-size: clamp(2.4rem, 6vw, 4.8rem); }
.page-hero-aside { padding: var(--space-lg); border: var(--rule-thin) solid var(--color-line); background: var(--color-white); }
.filter-bar { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-bottom: var(--space-xl); }
.filter-btn { min-height: 2.5rem; padding: var(--space-xs) var(--space-md); border: var(--rule-thin) solid var(--color-ink); background: transparent; color: var(--color-ink); font-weight: 750; cursor: pointer; white-space: nowrap; }
.filter-btn:hover, .filter-btn[aria-pressed="true"] { background: var(--color-ink); color: var(--color-white); }
.filter-btn:active { transform: translateY(1px); }
.filter-btn:disabled { opacity: .45; cursor: not-allowed; }
.gallery-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-lg); }
.gallery-item[hidden] { display: none; }
.guide-shell { display: grid; grid-template-columns: minmax(220px, .32fr) minmax(0, 1fr); gap: var(--space-3xl); }
.toc { position: sticky; top: 7rem; align-self: start; padding: var(--space-lg); border: var(--rule-thin) solid var(--color-line); background: var(--color-white); }
.toc h2 { font-size: var(--text-xl); }
.toc ol { margin: 0; padding-left: 1.25rem; }
.toc a { display: inline-block; padding-block: .25rem; }
.guide-chapter { padding-bottom: var(--space-3xl); margin-bottom: var(--space-3xl); border-bottom: var(--rule-thin) solid var(--color-line); }
.guide-chapter:last-child { margin-bottom: 0; border-bottom: 0; }
.guide-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-md); margin-bottom: var(--space-3xl); }
.guide-card { display: block; padding: var(--space-lg); border: var(--rule-thin) solid var(--color-line); background: var(--color-white); text-decoration: none; transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out); }
.guide-card:hover { transform: translateY(-2px); }
.guide-card span { color: var(--color-forest); font-weight: 800; }
.checklist { padding-left: 1.25rem; }
.checklist li { margin-bottom: var(--space-sm); }
.callout { padding: var(--space-lg); border-left: var(--rule-bold) solid var(--color-accent-strong); background: var(--color-paper-2); }
.final-cta { position: relative; overflow: hidden; padding-block: var(--space-4xl); background: var(--color-forest); color: var(--color-white); text-align: center; }
.final-cta::before, .final-cta::after { content: ""; position: absolute; inset: 12% auto auto 5%; width: 9rem; aspect-ratio: 1; border: var(--rule-thin) solid color-mix(in oklch, var(--color-accent) 60%, transparent); border-radius: 50%; }
.final-cta::after { inset: auto 6% -3rem auto; width: 15rem; }
.final-cta .wrap { position: relative; z-index: 1; }
.final-cta p { max-width: 52ch; margin-inline: auto; }
.site-footer { background: var(--color-nav); color: var(--color-paper); padding: var(--space-3xl) 0 calc(var(--space-3xl) + 2rem); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) repeat(2, minmax(170px, .75fr)); gap: var(--space-2xl); }
.footer-grid h2, .footer-grid h3 { font-size: var(--text-lg); }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-xs); }
.footer-links a { white-space: nowrap; }
.footer-note { margin-top: var(--space-2xl); padding-top: var(--space-lg); border-top: var(--rule-thin) solid color-mix(in oklch, var(--color-white) 18%, transparent); color: var(--color-paper-2); font-size: var(--text-sm); }
.mobile-cta { display: none; }
.back-top { position: fixed; z-index: 80; right: var(--space-md); bottom: var(--space-md); width: 2.8rem; height: 2.8rem; border: var(--rule-thin) solid var(--color-ink); background: var(--color-paper); color: var(--color-ink); cursor: pointer; opacity: 0; pointer-events: none; transform: translateY(.75rem); transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out); }
.back-top.is-visible { opacity: 1; pointer-events: auto; transform: none; }
.back-top:hover { background: var(--color-accent); }
.back-top:active { transform: translateY(2px); }
.back-top:disabled, .menu-toggle:disabled, .promo-close:disabled, .lightbox button:disabled { opacity: .48; cursor: not-allowed; }
button[data-state="loading"] { cursor: wait; opacity: .75; }
button[data-state="error"] { background: var(--color-error); color: var(--color-white); }
button[data-state="success"] { background: var(--color-success); color: var(--color-white); }
.lightbox { position: fixed; z-index: 150; inset: 0; display: none; background: color-mix(in oklch, var(--color-nav) 94%, transparent); color: var(--color-white); }
.lightbox[aria-hidden="false"] { display: grid; grid-template-columns: 4rem minmax(0, 1fr) 4rem; grid-template-rows: 4rem minmax(0, 1fr) auto; align-items: center; }
.lightbox figure { grid-column: 2; grid-row: 2; max-width: min(92vw, 1240px); max-height: 78vh; margin: auto; }
.lightbox img { max-height: 74vh; margin: auto; object-fit: contain; }
.lightbox figcaption { text-align: center; margin-top: var(--space-sm); }
.lightbox button { width: 3rem; height: 3rem; border: var(--rule-thin) solid var(--color-paper); color: var(--color-paper); background: transparent; cursor: pointer; }
.lightbox button:hover { color: var(--color-ink); background: var(--color-accent); }
.lightbox button:active { transform: scale(.96); }
.lightbox-close { position: absolute; right: var(--space-md); top: var(--space-md); }
.lightbox-prev { grid-column: 1; grid-row: 2; justify-self: center; }
.lightbox-next { grid-column: 3; grid-row: 2; justify-self: center; }
.lightbox-count { grid-column: 2; grid-row: 3; text-align: center; padding: var(--space-md); font-family: var(--font-mono); }

@media (max-width: 980px) {
  .nav-links { position: fixed; inset: 4.45rem 0 auto; display: none; padding: var(--space-lg); background: var(--color-nav); border-top: var(--rule-thin) solid color-mix(in oklch, var(--color-white) 18%, transparent); flex-direction: column; align-items: stretch; }
  .nav-links.is-open { display: flex; }
  .menu-toggle { display: block; }
  .nav-cta { width: 100%; }
  .hero-grid, .page-hero-grid, .download-panel { grid-template-columns: minmax(0, 1fr); }
  .hero-media { min-height: 420px; }
  .info-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .info-grid div:nth-child(3n) { border-right: 0; }
  .info-grid div:nth-child(-n+3) { border-bottom: var(--rule-thin) solid var(--color-line); }
  .catalogue-grid, .gallery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .audience-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  body { padding-bottom: 4.6rem; }
  .section { padding-block: var(--space-3xl); }
  .section-head { grid-template-columns: minmax(0, 1fr); align-items: start; gap: var(--space-sm); }
  .section-head p { justify-self: start; }
  .hero { padding-top: var(--space-lg); }
  .hero-grid { display: flex; flex-direction: column; }
  .hero-card { order: -1; padding: var(--space-lg); }
  .hero-media { min-height: 280px; }
  .hero-caption { font-size: var(--text-xs); }
  .hero-actions .btn { width: 100%; }
  .story-layout, .guide-shell { grid-template-columns: minmax(0, 1fr); gap: var(--space-xl); }
  .story-sticky, .toc { position: static; }
  .feature-list, .guide-cards { grid-template-columns: minmax(0, 1fr); }
  .feature { border-right: 0; }
  .feature:nth-last-child(2) { border-bottom: var(--rule-thin) solid var(--color-line); }
  .gallery-split { grid-template-columns: minmax(0, 1fr); }
  .gallery-main { min-height: 290px; }
  .gallery-thumb { min-height: 135px; }
  .catalogue-grid, .gallery-grid { grid-template-columns: minmax(0, 1fr); }
  .info-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .info-grid div, .info-grid div:nth-child(3n) { border-right: var(--rule-thin) solid var(--color-line); border-bottom: var(--rule-thin) solid var(--color-line); }
  .info-grid div:nth-child(even) { border-right: 0; }
  .info-grid div:nth-last-child(-n+2) { border-bottom: 0; }
  .spec-table, .spec-table tbody, .spec-table tr, .spec-table th, .spec-table td { display: block; width: 100%; }
  .spec-table th { border-bottom: 0; }
  .spec-table td { border-top: 0; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-grid > :first-child { grid-column: auto; }
  .mobile-cta { position: fixed; z-index: 85; inset: auto 0 0; display: flex; gap: var(--space-sm); align-items: center; justify-content: space-between; padding: var(--space-sm) max(var(--space-sm), env(safe-area-inset-right)) calc(var(--space-sm) + env(safe-area-inset-bottom)) max(var(--space-sm), env(safe-area-inset-left)); background: var(--color-nav); color: var(--color-white); border-top: var(--rule-thin) solid color-mix(in oklch, var(--color-white) 20%, transparent); }
  .mobile-cta span { font-size: var(--text-xs); }
  .mobile-cta .btn { min-height: 2.65rem; padding: .45rem .8rem; }
  .back-top { bottom: 5.4rem; }
  .lightbox[aria-hidden="false"] { grid-template-columns: 3.25rem minmax(0, 1fr) 3.25rem; }
  .lightbox button { width: 2.5rem; height: 2.5rem; }
}

@media (max-width: 420px) {
  .wrap { width: min(100% - 1.25rem, 1180px); }
  .brand-text { max-width: 9.5rem; overflow: hidden; text-overflow: ellipsis; }
  .promo { padding-inline: 2.5rem; }
  .hero-card h1 { font-size: clamp(2.15rem, 13vw, 3.5rem); }
  .hero-meta { grid-template-columns: minmax(0, 1fr); }
  .hero-meta div:nth-child(even) { padding-left: 0; border-left: 0; }
  .hero-meta div + div { border-top: var(--rule-thin) solid var(--color-line); }
  .info-grid { grid-template-columns: minmax(0, 1fr); }
  .info-grid div, .info-grid div:nth-child(even), .info-grid div:nth-last-child(-n+2) { border-right: 0; border-bottom: var(--rule-thin) solid var(--color-line); }
  .info-grid div:last-child { border-bottom: 0; }
  .thumb-stack { grid-template-columns: minmax(0, 1fr); }
  .gallery-thumb { min-height: 190px; }
  .step { padding-left: var(--space-xl); padding-top: 4.5rem; }
  .step::before { left: var(--space-xl); }
  .download-copy, .download-box { padding: var(--space-lg); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
  .hero-media img { transform: none; }
}